Python写的贪吃蛇游戏例子

第一次用Python写这种比较实用且好玩的东西,权当练手吧

游戏说明:

* P键控制“暂停/开始”
* 方向键控制贪吃蛇的方向

源代码如下:

from Tkinter import *
import tkMessageBox,sys
from random import randint

class Grid(object):     def __init__(self,master=None,window_width=800,window_height=600,grid_width=50,offset=10):         self.height = window_height         self.width = window_width         self.grid_width = grid_width         self.offset = offset         self.grid_x = self.width/self.grid_width         self.grid_y = self.height/self.grid_width         self.bg = "#EBEBEB"         self.canvas = Canvas(master, width=self.width+2*self.offset, height=self.height+2*self.offset, bg=self.bg)         self.canvas.pack()         self.grid_list()     def draw(self, pos, color,):         x = pos[0]*self.grid_width + self.offset         y = pos[1]*self.grid_width + self.offset         self.canvas.create_rectangle(x, y, x+self.grid_width, y+self.grid_width,fill=color,outline=self.bg)     def grid_list(self):         grid_list = []         for y in range(0,self.grid_y):             for x in range(0,self.grid_x):                 grid_list.append((x,y))         self.grid_list = grid_list class Food(object):     def __init__(self, Grid):         self.grid = Grid         self.color = "#23D978"                self.set_pos()     def set_pos(self):         x = randint(0,self.grid.grid_x - 1)         y = randint(0,self.grid.grid_y - 1)         self.pos =  (x, y)        def display(self):         self.grid.draw(self.pos,self.color) class Snake(object):     def __init__(self, Grid):         self.grid = Grid         self.body = [(10,6),(10,7),(10,8)]         self.direction = "Up"         self.status = ['run','stop']         self.speed = 300         self.color = "#5FA8D9"                self.food = Food(self.grid)         self.display_food()         self.gameover = False         self.score = 0     def available_grid(self):         return [i for i in self.grid.grid_list if i not in self.body[2:]]     def change_direction(self, direction):         self.direction = direction     def display(self):         for (x,y) in self.body:             self.grid.draw((x,y),self.color)     def display_food(self):         while(self.food.pos in self.body):             self.food.set_pos()         self.food.display()     def move(self):         head = self.body[0]         if self.direction == 'Up':             new = (head[0], head[1]-1)         elif self.direction == 'Down':             new = (head[0], head[1]+1)         elif self.direction == 'Left':             new = (head[0]-1,head[1])         else:             new = (head[0]+1,head[1])         if not self.food.pos == head:                     pop = self.body.pop()             self.grid.draw(pop,self.grid.bg)         else:             self.display_food()             self.score += 1         self.body.insert(0,new)              if not new in self.available_grid():             self.status.reverse()                        self.gameover = True         else:             self.grid.draw(new,color=self.color) class SnakeGame(Frame):     def __init__(self,master=None, *args, **kwargs):         Frame.__init__(self, master)         self.master = master         self.grid = Grid(master=master,*args, **kwargs)         self.snake = Snake(self.grid)         self.bind_all("", self.key_release)         self.snake.display()     def run(self):         if not self.snake.status[0] == 'stop':             self.snake.move()         if self.snake.gameover == True:             message =  tkMessageBox.showinfo("Game Over", "your score: %d" % self.snake.score)             if message == 'ok':                 sys.exit()         self.after(self.snake.speed,self.run)     def key_release(self, event):         key = event.keysym         key_dict = {"Up":"Down","Down":"Up","Left":"Right","Right":"Left"}         if key_dict.has_key(key) and not key == key_dict[self.snake.direction]:             self.snake.change_direction(key)             self.snake.move()         elif key == 'p':             self.snake.status.reverse() if __name__ == '__main__':     root = Tk()     snakegame = SnakeGame(root)     snakegame.run()     snakegame.mainloop()